Yep, check your math....
Your US prices = $39,790+$4,080 = $43,870 (all "extras")
$43,870/.72 = $60,930.... a bit less than $65,960 or $68,460? Not sure how you get 5k less. Its 5k or 8k more.... based on your numbers. Unless the chart isn't what your using to compare prices...
Don't kid yourself Ford is making a lot on these overseas sales... as is the Aus government in tax, a big part of the added costs... they make good money on them in the US and even more overseas.
Look at "dealer prep" noted here 3-5k.. to do what, clean it (maybe a quick wash or full detail, optional), drive it a few k's and have the tech plug in the computer to check it (maybe), fill-in registration paperwork, and hand over the keys... a few hours work for 3-5k... tough job!
Some may do a bit more, but most won't even fill the tank with petrol... usually $1.5k or so and still a money maker at that price.
In the end it is all irrelevant, you pay whatever Ford wants here as it is a feeding frenzy...